Buffer overflow in Hangzhou Xiongmai Technology P2papi.dll
CVE-2026-120226
A security vulnerability has been detected in Hangzhou Xiongmai Technology P2PAPI.dll 1.3.3.32 on Windows. Affected by this issue is the function P2PAPI_Connect of the component P2P SDK. Such manipulation of the argument input as part of String leads to buffer overflow. An attack has to be approached locally. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Vulnerability class: Buffer Overflow
Published .
CVSS v3 metric
CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Hangzhou Xiongmai Technology P2papi.dll — versions 1.3.3.32
Weakness classification (CWE)
References
- vuldb.com/vuln/429585 (technical-description, vdb-entry, mitigation)
- vuldb.com/vuln/429585/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-120226 (third-party-advisory)
- vuldb.com/submit/1013929 (third-party-advisory)
- gist.github.com/Ishanoshada/a47d24d77dd03f34c7f324491b59edac (mitigation)
Frequently asked questions
- What is CVE-2026-120226?
- CVE-2026-120226 is a low-severity vulnerability in Hangzhou Xiongmai Technology P2papi.dll, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 3.3/10. Published 2026-11-01.
- How severe is CVE-2026-120226?
- Low severity. CVSS v3 base score is 3.3 out of 10.